Home / 18,744.97-28,125.23-8,209.55

Finding the Fourth Proportional to 18,744.97, 28,125.23 and 8,209.55

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Solution

The fourth proportional to 18,744.97, 28,125.23 and 8,209.55 is: 12,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,744.97 : 28,125.23 = 8,209.55 : x
  2. Step 2: Convert to fraction form
    18,744.97/28,125.23 = 8,209.55/x
  3. Step 3: Cross multiply
    18,744.97x = 28,125.23 × 8,209.55
  4. Step 4: Simplify right side
    18,744.97x = 230,895,481.95
  5. Step 5: Solve for x
    x = 230,895,481.95/18,744.97
  6. Step 6: Final answer
    x = 12,317.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.